Cu-Al-Ni based alloy rod could be fabricated by heated-mold continuous casting, which shows unidirectional solidification structure in the [100] direction and the γ2 phase was precipitated in matrix along cast direction. When the rod was betatized at the elevated temperature above 750℃, the γ2 phase is dissolved into the matrix so that Ms temperature was decreased. It could be also confirmed that both β1' and γ1' martensites coexited below - 20 ℃ by DSC measurement. The betatized rod showed pseudoelastic behavior but the stress-strain curves of compressive-deformed rods were not same with betatizing temperature; the stress-strain curves of the specimen betatized at 700℃ were linear but those of the rod betatized above 750 ℃ were non-linear.